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AstDyS ∴ Objects ∴ 1997EF21 ∴ Observational info
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(373409) 1997EF21  ▹ 
OBSERVATIONAL INFORMATION
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Arc information
Arc length 9841.97 days
Unobserved 81 days

 

Astrometry summary
Optical
RMS of residuals 0.46
First observation 1997-03-04.298
Last observation 2024-02-13.272
Number (Discarded) 221 (0)

 

Get the observational details
ASCII file

 

Note: The ASCII file is in a format suitable for OrbFit input.